Case Study:

Insulation for a New Air Source Heat Pump Installation

Main Contractor


Project Type


Project Value

House Grantham

The Project

A project that had been months in the planning, Sarah was looking at ways she could turn her 5-bedroom cottage renovation into an energy-efficient family home and cut costs on heating and energy in the process.

The Problem

A large, rural cottage in the heart of Leicestershire, Sarah wanted to reduce her carbon footprint and find ways she could heat the cottage as economically as possible. Sarah had done her research and had been in long discussions with the team at All Seasons Energy on how to install a heat pump in her home. It was noted that the cottage needed additional insulation measures to meet the requirements for an air source heat pump. Our technical team worked together with All Seasons Energy to get the cottage up to the standard needed for the heating works to begin.

How We Helped

The All Seasons Energy team required Sarah to improve the insulation in the cottage so the heat loss through the walls, roof and floor was minimised before installing a heat pump. Air source heat pumps operate at a lower temperature than more traditional heating systems – they channel heat slowly over longer periods of time so Sarah’s cottage needed to be properly insulated, so she could retain this heat and enjoy the benefits of a lower-cost renewable heating source. Without the additional insulation, Sarah would’ve found that the air source heat pump wasn’t going to produce enough heat to satisfy her thermal comfort.

Sarah was looking for products that would insulate and provide the cottage with high thermal performance, be space-saving, quick to install and that’s exactly what our products could provide. SuperFOIL insulation is perfectly suited for a retrofit application and Sarah got to work on fitting SF19+ in the eaves of the cottage meeting all the thermal properties needed; allowing the All Seasons team to get to work on fitting the air source heat pump.

SF19+ is BBA-certified insulation for use in roofs and walls. It utilises Dupont ultra-efficient nano-coating technology to improve the performance and acts as a radiant barrier to reflect excessive heat gain during the summer months as well as insulating throughout the year.

Ideal for use in walls, roofs, and floors in new build, renovation, or extension projects. Its technical specification means it provides high performance from a small footprint. It’s easy to install and results in minimal waste. SuperFOIL is manufactured with 40% recycled materials and is recyclable at the end of its 50+ year useful life.

We help 1000's of customers every year

Here are just a few of the comments we've received...

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Loft Conversion

Actually, I bought Superfoil for my small extension and I must say easy to install and it works, room is comfortable better than Kingspan. Now looking at installing an underfloor in my daughter's house. Thanks!

Duncan Walker

Conservatory Conversion

I'm really grateful for all the info you've provided, many thanks. To be honest I didn't think your stuff is as good as it clearly is, and we'll definitely be using it in the future. Can I ask a favour and ask you to calculate two more please?

Carl Bell

Self Build

In the past, I used SF19 for thermal insulation of the roof. I have the best experience. I'm thinking about insulating the house outside wall. As I want to be clear, I will definitely call. Many satisfied customers wish.

Jiri Milfait


We’re delighted with the thermal improvements after fitting Superfoil SF40. The system was clearly and helpfully specified, simple to install and immediately felt warmer, despite this also being the Winter of Beast from the East. It suits our 200 year old house, now heated with a modern, green air source heat pump.

Tim Clements

Senior Building Control Surveyor

Many thanks for all your assistance with this matter, you have been very helpful. The information you have provided has been very useful to one of our customers and I am now more familiar with this type of double fit of SuperFOIL as a suitable method of achieving compliance with The Building Regulations.

Donna Worrell

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